| article html file updated | 7 February 2020 07:08 CET | Update | https://www.mdpi.com/1999-5903/8/2/11 |
| article html file updated | 21 September 2019 14:56 CEST | Update | N/A |
| article html file updated | 5 May 2019 18:54 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:37 CET | Update | N/A |
| article html file updated | 12 April 2016 10:26 CEST | Original file | N/A |
| article xml uploaded. | 12 April 2016 10:25 CEST | Original file | https://www.mdpi.com/1999-5903/8/2/11/xml |
| article pdf uploaded. | 12 April 2016 10:25 CEST | Version of Record | https://www.mdpi.com/1999-5903/8/2/11/pdf |
